﻿<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <style type="text/css">
      h2.pos_left{
      position:relative;
      left:-20px;
      }
      h2.pos_right
      {
       position:relative;
       left:20px;
      }
    </style>

  </head>

<body>
  <h2>这是正常标题</h2>
  <h2 class="pos_left">向左20px</h2>
  <h2 class="pos_right">向右20px</h2>


</body>
</html>
